J/ApJS/213/25 WISE Massive & Distant Clusters (MaDCoWS). II. (Stanford+, 2014)
The Massive and Distant Clusters of WISE Survey.
II. Initial spectroscopic confirmation of z∼1 galaxy clusters selected from
10,000 deg2.
Stanford S.A., Gonzalez A.H., Brodwin M., Gettings D.P., Eisenhardt P.R.M.,
Stern D., Wylezalek D.
<Astrophys. J. Suppl. Ser., 213, 25 (2014)>
=2014ApJS..213...25S 2014ApJS..213...25S
ADC_Keywords: Clusters, galaxy ; Redshifts ; Galaxies, IR ; Surveys
Keywords: galaxies: clusters: individual; galaxies: distances and redshifts;
galaxies: evolution
Abstract:
We present optical and infrared imaging and optical spectroscopy of
galaxy clusters which were identified as part of an all-sky search for
high-redshift galaxy clusters, the Massive and Distant Clusters of
WISE Survey (MaDCoWS). The initial phase of MaDCoWS combined infrared
data from the all-sky data release of the Wide-field Infrared Survey
Explorer (WISE) with optical data from the Sloan Digital Sky Survey to
select probable z∼1 clusters of galaxies over an area of 10000deg2.
Our spectroscopy confirms 19 new clusters at 0.7<z<1.3, half of which
are at z>1, demonstrating the viability of using WISE to identify
high-redshift galaxy clusters. The next phase of MaDCoWS will use the
greater depth of the AllWISE data release to identify even higher
redshift cluster candidates.
Description:
We have been carrying out follow-up observations to confirm WISE
All-Sky Release selected candidate clusters. Images of the
spectroscopically confirmed candidates are shown in Figure 1, and
listed in Table 1. Optical imaging was obtained with the Gran
Telescopio Canarias (GTC; in i-band, in 2012 August) and Gemini-North
(with GMOS r- and z-band imaging in the 2013A and 2013B semesters),
Infrared Array Camera (IRAC) imaging with the Spitzer Space Telescope
(3.6 and 4.5um imaging in Cycle 9), and optical spectroscopy with
Keck/DEIMOS (GG495 filter on three observing runs in the 2012B, 2013A,
and 2013B semesters with seeing of 0.6"-1.0") and Gemini-North/GMOS
(RG810 filter with seeing of 0.6"-1.0").
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 87 19 Follow-up observations
table2.dat 53 220 Redshifts of spectroscopic members
--------------------------------------------------------------------------------
See also:
II/311 : WISE All-Sky Data Release (Cutri+ 2012)
V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)
J/ApJS/209/22 : SSDF survey: IRAC catalogs (Ashby+, 2013)
J/ApJ/763/127 : Galaxy clusters discovered in the SPT survey (Reichardt+, 2013)
J/AJ/145/77 : Imaging & spectroscopy in 3 galaxy clusters (Jorgensen+, 2012)
J/ApJ/743/34 : WISE and SDSS-DR7 data in 69 galaxy clusters (Chung+, 2011)
J/ApJ/686/966 : Spitzer-FLS catalog of clusters of galaxies (Muzzin+, 2008)
J/ApJ/684/905 : Galaxy clusters from IRAC Shallow Survey (Eisenhardt+, 2008)
J/MNRAS/301/881 : The ROSAT brightest cluster sample - I. (Ebeling+, 1998)
http://www.sdss3.org/ : SDSS-III home page
http://wise2.ipac.caltech.edu/docs/release/allsky/expsup/index.html : WISE
home page
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- --- [MOO J]
6- 14 A9 --- MOO Cluster identifier (HHMM+DDMM; J2000) (1)
16- 17 I2 h RAh Hour of right ascension (J2000)
19- 20 I2 min RAm Minute of right ascension (J2000)
22- 25 F4.1 s RAs Second of right ascension (J2000)
27 A1 --- DE- Sign of declination (J2000)
28- 29 I2 deg DEd Degree of declination (J2000)
31- 32 I2 arcmin DEm Arcminute of declination (J2000)
34- 35 I2 arcsec DEs Arcsecond of declination (J2000)
37- 44 A8 --- Im Imaging
46- 87 A42 --- Inst Spectroscopy instrument and UT dates
--------------------------------------------------------------------------------
Note (1): MOO stands for MaDCoWS Overdense Object.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [MOO]
4- 12 A9 --- MOO Cluster identifier (HHMM+DDMM; J2000) (1)
13 A1 --- --- [.]
14- 18 I5 --- Seq [7/15580] Object identifier (1)
20- 21 I2 h RAh Hour of Right Ascension (J2000)
23- 24 I2 min RAm Minute of Right Ascension (J2000)
26- 31 F6.3 s RAs Second of Right Ascension (J2000)
33 A1 --- DE- Sign of the Declination (J2000)
34- 35 I2 deg DEd Degree of Declination (J2000)
37- 38 I2 arcmin DEm Arcminude of Declination (J2000)
40- 43 F4.1 arcsec DEs Arcsecond of Declination (J2000)
45- 49 F5.3 --- z [0.7/1.3] Spectroscopic redshift
51 A1 --- q_z Redshift quality (A=best) (2)
53 A1 --- Type Source type (3)
--------------------------------------------------------------------------------
Note (1): The object ID is created from the cluster MOO ID followed by
the sequence of the object.
Note (2): Quality flag as follows:
A = high degree of certainty based on multiple features;
B = reasonable certainty based on at least two features.
Note (3): Source type as follows:
E = the optical spectrum has an emission line (nearly always
[O II] λ3727);
A = an absorption line (Ca H+K, D4000) spectrum.
--------------------------------------------------------------------------------
History:
* 02-Oct-2014: Insert into VizieR from electronic version
* 09-Oct-2014: Members of MOO J0012+1602 added in table2.dat
(supplied by the author).
References:
Gettings et al. 2012ApJ...759L..23G 2012ApJ...759L..23G
Stanford et al. Paper II. 2014ApJS..213...25S 2014ApJS..213...25S This catalog
Brodwin et al. Paper III. 2015ApJ...806...26B 2015ApJ...806...26B
Gonzalez et al. 2015ApJ...812L..40G 2015ApJ...812L..40G
Gonzalez et al. Paper IV. 2018ApJ...869..131M 2018ApJ...869..131M
MORAVEC et al. Paper V. 2019ApJ...871..186M 2019ApJ...871..186M
Gonzalez et al. Paper I. 2019ApJS..240...33G 2019ApJS..240...33G Cat. J/ApJS/240/33
(End) Greg Shwarz [AAS], Emmanuelle Perret [CDS] 05-Sep-2014